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Finding the Fourth Proportional to 2,804.91, 3,871.04 and 2,061.33

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Solution

The fourth proportional to 2,804.91, 3,871.04 and 2,061.33 is: 2,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.91 : 3,871.04 = 2,061.33 : x
  2. Step 2: Convert to fraction form
    2,804.91/3,871.04 = 2,061.33/x
  3. Step 3: Cross multiply
    2,804.91x = 3,871.04 × 2,061.33
  4. Step 4: Simplify right side
    2,804.91x = 7,979,480.58
  5. Step 5: Solve for x
    x = 7,979,480.58/2,804.91
  6. Step 6: Final answer
    x = 2,844.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.